An objective is to provide a developing roller in which increase of
residual potential is inhibited during repetitive operation without
deteriorating interlayer adhesion, and prepared is a layer immediately
below the surface capable of preventing fog caused by toner scattering,
accompanied with a surface layer capable of preventing stains formed from
foreign matters adhered to the surface, as well as preventing image
unevenness since toner electrification is even under the presence of
appropriate elasticity, and also to provide a image forming method
employing the developing roller. Disclosed is a developing roller
possessing an elastic layer made of silicone rubber provided around a
conductive shaft, and a plurality of resin layers further provided on the
elastic layer, wherein an outermost surface layer among the resin layers
comprises silicone copolymerization polyurethane; and a layer immediately
below the surface layer comprises a polyurethane resin-silica hybrid.